Resilient tire



Patented May 27 1947 STATES PATENT ztzlyt FFIC RESILIENT' TIRE Harlan E, Huntsbery, Washington, D. 0.

Application June as, 1945, serial'No. 602,064

3 Claims. 1

.This invention relates to resilient metallic vehicle wheels.

An object of this invention is to form a vehicle tire which is formed of an inner resilient rim section, and a floating outer resilient tread section which are coupled together in a manner so an outwardly and obtusely inclined bar it which merges'with a longitudinally arcuate bar IT. The

bar l1 hasthe concave side thereof innermost and has formed integral therewith a substantially V-shaped saddle, generally designated as I8. The

saddle l8 includes a-straight bar l9 which is integral with the side bar I! being connected therewith by means of an arcuate connectin member 20. The connection between the'two straight bars i9 is formed by an arcuate seat 2!, the purpose for which will be hereinafter described.

In order to provide for maintaining the coil M tightly-within the rim seat, I have provided an elongated fiat band 22 which is welded or otherwise firmly secured to the series of straight bars I5. Theends or the band 22'have secured thereto inventionconsists of the novel construction, combination and arrangement of parts, as will be more specifically described, and illustrated in the accompanying drawings wherein are shown embodlments of the invention, but it is to be under stood that variations, and modifications may be resorted to which fall within the scope of the invention, as claimed.

In the drawings:

Figure 1 is a detail side elevation of a tire con- I ignates generally a vehicle rim which is formed with an annular well I I, and a flared rim member i2. The rim member I2 is outwardly flared as at l3 and is adapted to receive a resilient tire, as hereinafter described.

The rim structure ID, has mounted thereabout, the inner portion M of resilient tire construction The member M is constructed in circular configuration, being formed out of an elongated resilient wire which is bent in coil form so as to provide spaced apart convolutions. The inner coil section H3 is formed with an inner rim engaging bar I5 which extends across the well II and the bar I 5 has extending from the opposite ends thereof,

eyes 23 which are disposed in confronting relation and through which a tensioning bolt 24 enases- The inner coil M, which constitutes the cushionlng member, has disposed thereabout, an outer or tread coil, generally designated as 25. The tread. coil 25 is formed from an elongated coiled wire of suitable resiliency and rigidity which is bent in coil form and includes an outer treadvbar 2B which is preferably straight. The tread bar 26 has extending 'from the opposite ends thereof, longitudinally curved side forming bars 2? and the side formin bars 27. at a point substantially midway of the radial thickness of the tire, have formed integral therewith, an inwardly curved supporting bar 28. The two supporting bars 28 are disposed in confronting relation and have formed integral therewith a substantially U-shaped' saddle 29.

The U-shaped saddle 29 intersects and engages in the apex or inner angle of the saddle ll! of the inner coil so that the pressure on the tread bar 28 will cause the resilient arms 28 to flex and the pressure on the saddle 18 by the saddle 29 will cause the outer ends of the side bars I! of plates include an outer tread member 8! which has formed integral with the opposite outer edges,

inwardly divergent side members 32. Each tread 3 plate 8! has formed integral with the opposite ends thereof, open hinge barrels 33 which engage over the transverse tread bars 28, as shown in Figure 5, and the barrels of one tread plate ll are adapted to intermesh with the barrels of an adiacent tread plate, as shown in Figure 4.

The tread plates BI and side members 32 are so positioned relative to the adjacent tread plates that the slight distance therebetween is sufllcient to permit the deformation of the tire at the bottom thereof due to excess loads or upon encountering obstacles, the relationship shown in Figure 1 being that of the plates in their normal position when the tire is supporting no load.

The two coils l4 and 25 may be covered so as to prevent dirt or other material from enterin into the convolutions of the coils by means of a pair of circular side wall members 34. The side wall members 34, at their outer edges, are interposed between the divergent tread members 32, and the adjacent portions of the tread coil 25 and the inner coil H. The inner edges of the side wall members 84 are interposed between the inner portions of the inner coil 14 and the diver-- gent sides I3 of the rim.

The tread coil 25 is locked with respect to the inner coil H by means of a pair of circular bars 35 which are secured to the inner portions of the extensions 28 on the outer sides thereof and the ends of the bars 35 are formed with confronting eyes 36 through which tightening bolts 31 are adapted to engage. In this manner the tread coil 25 will be resiliently locked to the inner coil It.

In the use and operation of this tire construction the coils H and 28 are mounted on the rim ill by the loosening of the bolts 24 and 31. The inner coil H is positioned about the rim l0. and then tightened in the rim by means of the bolt 26 and engaging through the eyes 23. The outer tread. coil 25 is also tightened by adjustment of the bolts 31 which engage through the eyes 36. The tread plates or members 30 may be formed out of metal or other suitable material and, if desired, these tread members 30 may be covered by a resilient casing which may be formed out of rubber, composition or the like. When weight is applied to the tire, this weight will initially be borne by the two coil members, the outer coil member 25 pressing inwardly against the tension of the arcuate side members I"! of the inner coll M. The distance or space between the outer ends of the side members i7, and the tread bars 26, is preferably sufiicient to provide for sustaining normal weights which are carried by the tire. Where extra heavy weights are encountered or where the tire rides over an obstruction, the extra weight is borne by the outer ends 20 of the inner coil member 14, as at this time the outer ends 20 of the side members I! will be positioned at the angle formed by the side members 32 of the tread members 30. It will be apparent from the foregoing. that a resilient tire construction has been provided which will take the place of pneumatic tires or inner tubes.

The tire construction herein disclosed can be manufactured at small cost and will obviously eliminate all blowout; or, punctures. The inner and outer resilient coils may be made out of tempered wire of suitable gage or'thickness which is designed to bear a predetermined normal load or weight.

The side members 32 will provide a means to revent collapse or distortion outwardly of the inner and outer coils as the side members are of sufficient width to encompass the outer portions of both coils and are also of suflicient rigidity to reinforce the coils. In this manner there is provided a substantial truss formed by the interengaging saddles I8 and 29 and by the outer bars I! and 21 of the inner and outer coils respectively. Any overload will be resiliently borne by the two intermeshed coils, and these coils are at all times prevented from completely collapsing or becoming unduly distorted.

I claim:

1. A tire construction comprising an inner annular wire coil, an outer wire coil, confronting interengaging saddle members carried by said coils whereby said outer coil will be resiliently supported by said inner coil, tread members carried by said outer coil, 9. pair of split circular contracting members fixed to the convolutions of said outer coil at the inner portions thereof, and means drawing the ends of said contracting members together whereby to hold said outer coil about said inner coil.

2. A tire construction comprising an inner annular wir coil, an outer wire coll; the convolutions of said inner coil being formed with inverted V-shaped saddle members, U-shaped saddle members on said outer coil, the bight of said u-shaped members engageable with the apex of an adjacent V-shaped saddle member whereby said outer coil will be resiliently supported by said inner coil. tread members carried by said outer coil, a pair of split circular contracting members fixed to the convolutions of said outer coil at the inner portions thereof, and means drawing the ends of said contracting members together where-.- by to hold said outer coil about said inner coil.

3. A tire construction comprising an inner annular wire coil, an outer wire coil. inverted V- shaped saddle members on the outer portions of said inner coil, U-shaped saddle members on the inner side of said outer coil, the night of said U-shaped saddle members engaging in the apex of said V-shaped saddle members whereby said outer coil will be resiliently supported by said inner coil, 9. pair of split circular contracting members fixed to the convolutions of said outer coil adjacent said U-shaped saddle member, and means drawing the ends of said contracting members together whereby to hold said outer coil about said inner coil.

HARLAN E. HUN TSBERY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,020,464 Temple Mar. 19, 1912 907,191 Sower Dec. 22, 1908 2.l37,6'70 Gillespie Nov. 22, 1938 FOREIGN PATENTS Number Country Date 395,436 France 1909 41,700 Sweden l915 

